deps(ci): bump actions/attest-build-provenance from 3.2.0 to 4.0.0

Bumps [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance) from 3.2.0 to 4.0.0.
- [Release notes](https://github.com/actions/attest-build-provenance/releases)
- [Changelog](https://github.com/actions/attest-build-provenance/blob/main/RELEASE.md)
- [Commits](96278af6ca...e4d4f7c39a)

---
updated-dependencies:
- dependency-name: actions/attest-build-provenance
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build.yml

@@ -118,7 +118,7 @@ jobs:
           retention-days: 1
 
       - name: Attest digest (per-arch)
-        uses: actions/attest-build-provenance@96278af6caaf10aea03fd8d33a09a777ca52d62f #v3.2.0
+        uses: actions/attest-build-provenance@e4d4f7c39adfa4c260fb5c147f0622000aa14b99 #v4.0.0
         with:
           subject-name: digests-${{ matrix.arch }}
           subject-digest: sha256:${{ steps.upload_digests.outputs.artifact-digest }}
@@ -199,14 +199,14 @@ jobs:
           echo "digest=$DIGEST" >> $GITHUB_OUTPUT
 
       - name: Attest docker build (DockerHub)
-        uses: actions/attest-build-provenance@96278af6caaf10aea03fd8d33a09a777ca52d62f #v3.2.0
+        uses: actions/attest-build-provenance@e4d4f7c39adfa4c260fb5c147f0622000aa14b99 #v4.0.0
         with:
           subject-name: index.docker.io/${{ github.repository }}
           subject-digest: ${{ steps.docker_build.outputs.digest }}
           push-to-registry: true
 
       - name: Attest docker build (GitHub Container Registry)
-        uses: actions/attest-build-provenance@96278af6caaf10aea03fd8d33a09a777ca52d62f #v3.2.0
+        uses: actions/attest-build-provenance@e4d4f7c39adfa4c260fb5c147f0622000aa14b99 #v4.0.0
         with:
           subject-name: ghcr.io/${{ github.repository }}
           subject-digest: ${{ steps.docker_build.outputs.digest }}